This issue is seen when running system tests on the build agents which is hosted on the machine "MISandbox-1".
Please refer the above logs.
1. Enable parallel and parallel live( python -m tox -c tox-system_tests.ini --parallel 4 --parallel-live
2. Go to https://ni.visualstudio.com/Users/_build?definitionId=7052&_a=summary
2. click on "Run Pipeline"
3. This is a intermittent issues so need to try above steps for 3-4 times.